1.vuex 状态持久化插件 —— vuex-persistedstate

npm install --save vuex-persistedstate

2.在vuex的index.js文件中

import Vue from "vue";
import Vuex from "vuex";
import createPersistedState from 'vuex-persistedstate'

3.使用持久化插件

export default new Vuex.Store({
  state: {
    car: []
  },
  mutations: { 
  },
  getters: {
  },
  actions: {},
  modules: {},
  plugins: [createPersistedState()]
});